What is the most FUN pair of speakers you've ever had and why?

Not the most expensive, not the best reviewed, not the biggest, but the most FUN.  You know, that ONE that just makes you throw on some more music and keep listening, the one that makes your toes tap, your head bob, your ass move the most.  The one that makes you think to yourself "damn, why doesn't everyone have a pair of these?" Let 'er rip. 
Since I've been notified of my tone deafness,I will from this day forward listen to only talk radio on a transistor radio. I was foolish to think I was getting any enjoyment from my substandard system. My deepest and humble apologies.
I'm with stereo5, I have owned the Kismet monitors for about 3 years and have tried 4 or 5 different monitors. These are the ones that are staying! Being tone deaf is a wonderful thing...
Acoustat Monitor 3's  and believe it or not a pair of Kef 104ab's i had a long time ago that were so pleasing to me back then. I ran them with a Hafler DH 100 and the original Hafler Preamp. Monster cable and a Thorens turntable.+ A cheap Grado cartridge. i did not know enough to not be happy with them I suppose. It was throw another album on.
Klipsch Forte iii -definitely FUN to listen to.